如果没有@提供注释的方法，则无法提供匕首刀柄

Question

我是新来的，用匕首。所以，我不能解决这个有什么问题。我只想问在这里解决它。

这是错误：

c:\ Users \ MSI \ Documents \ MyAndroidProjects \ movie projects \ App \ build \ generated \ hilt \ component _ sources \ debug \ com \ example \ movie App \ App _ hilt components . Java:128:错误:[Dagger/missing binding]com . example . movie App . API . movie App service不能在没有@Provides-annotated方法的情况下提供。公共抽象静态类SingletonC实现App_GeneratedInjector，^ com . example . movie app . API . movie app service在com . example . movie app . repository . movie repository(movie app service)com . example . movie app . repository . movie repository在com . example . movie app . viewmodel . mainviewmodel(repository，；com . example . movie app . viewmodel . mainviewmodel在com . example . movie app . viewmodel _ mainviewmodelbinds module . binds(arg 0)@ dagger . hilt . Android . internal . life cycle . hiltviewmodelmap Java . util . map

MainViewModel.kt

@HiltViewModel
class MainViewModel@Inject constructor(
    private val repository: MovieRepository,
    @ApplicationContext private val context: Context
) : ViewModel() {

    val movieList = MutableLiveData<Resource<Movie>>()

    fun getAllMovies(movieName: String) {
        movieList.postValue(Resource.Loading())
        viewModelScope.launch {
            try {
                if (hasInternetConnection(context)) {
                    val response = repository.getMovies(movieName, "ffe9063f")
                    movieList.postValue(Resource.Success(response.body()!!))
                } else
                    movieList.postValue(Resource.Error("Internet yok"))
            } catch (ex: Exception) {
                when (ex) {
                    is IOException -> movieList.postValue(Resource.Error("Network Failure " + ex.localizedMessage))
                    else -> movieList.postValue(Resource.Error("Conversion Error"))
                }
            }
        }
    }
}

电影存储库.kt

@Singleton
class MovieRepository @Inject constructor(private val movieAppService: MovieAppService) {

    suspend fun getMovies(title: String, aKey: String): Response<Movie> = withContext(
        Dispatchers.IO
    ) {
        val movies = movieAppService.getMovies(title = title, aKey = aKey)
        movies
    }
}

ApiModule.kt

class ApiModule {
    @Module
    @InstallIn(SingletonComponent::class)
    object ApiModule {

        @Provides
        @Singleton
        fun provideLoggingInterceptor(): HttpLoggingInterceptor {
            return HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY)
        }

        @Provides
        @Singleton
        fun provideOkHttpClient(logging: HttpLoggingInterceptor): OkHttpClient {
            return OkHttpClient.Builder()
                .addInterceptor(logging)
                .connectTimeout(15, TimeUnit.SECONDS) // connect timeout
                .readTimeout(15, TimeUnit.SECONDS)
                .build()
        }

        @Provides
        @Singleton
        fun provideRetrofit(client: OkHttpClient): Retrofit {
            return Retrofit.Builder()
                .baseUrl(ENDPOINT)
                .addConverterFactory(GsonConverterFactory.create())
                .client(client)
                .build()
        }

        @Provides
        @Singleton
        fun provideMovieAppService(retrofit: Retrofit): MovieAppService {
            return retrofit.create(MovieAppService::class.java)
        }
    }
}

MovieAppService.kt

interface MovieAppService {

    companion object {
        const val ENDPOINT = "http://www.omdbapi.com/"
    }

    @GET(".")
    suspend fun getMovies(@Query("t") title: String,@Query("apikey") aKey: String): Response<Movie>
}

Answer 1

不要用相同的命名类包装您的单个对象模块。像这样更改模块文件或更改类名

@Module
@InstallIn(SingletonComponent::class)
object ApiModule {
    
    @Provides
    @Singleton
    fun provideLoggingInterceptor(): HttpLoggingInterceptor {
        return HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY)
    }

    @Provides
    @Singleton
    fun provideOkHttpClient(logging: HttpLoggingInterceptor): OkHttpClient {
        return OkHttpClient.Builder()
            .addInterceptor(logging)
            .connectTimeout(15, TimeUnit.SECONDS) // connect timeout
            .readTimeout(15, TimeUnit.SECONDS)
            .build()
    }

    @Provides
    @Singleton
    fun provideRetrofit(client: OkHttpClient): Retrofit {
        return Retrofit.Builder()
            .baseUrl(ENDPOINT)
            .addConverterFactory(GsonConverterFactory.create())
            .client(client)
            .build()
    }

    @Provides
    @Singleton
    fun provideMovieAppService(retrofit: Retrofit): MovieAppService {
        return retrofit.create(MovieAppService::class.java)
    }
    
}